The United States will continue to work with Egypt, Ethiopia and Sudan until they sign an accord on a giant Blue Nile hydropower dam, after failing to secure signatures from the three countries this week, U.S. Treasury Secretary Steven Mnuchin said Friday.  The three countries had expected to sign an agreement in Washington this week on the filling and operation of the $4 billion Grand Ethiopian Renaissance Dam (GERD), but Ethiopia skipped the meeting and only Egypt has initialed the deal thus far. In a statement released late Friday, Mnuchin said he held separate bilateral talks with key ministers from Egypt and Sudan over the past two days after Ethiopia asked for a […]